Large module grouping structure of flexible soft package battery

Abstract

The invention discloses a large module grouping structure of a flexible soft package battery. The large module grouping structure comprises a plurality of Blocks (2) and a plurality of in-module frames (5) which are stacked in a crossed way along the thickness direction, wherein the Blocks (2) and the in-module frames (5) are packaged into groups by means of packing straps (1); the Blocks (2) arebattery modules; positive and negative electrodes of the plurality of Blocks (2) are respectively and electrically connected by means of busbars; the in-module frames (5) are positioned among the Blocks (2), so that the Blocks (2) are adjusted to reserve a certain range of gap from one another, and flexible grouping is further realized. The large module grouping structure of the flexible soft package battery can solve the conflict between module universality and flexible design, reduces grouping cost of the module, and increases the grouping efficiency of the module.

Description

technical field [0001] The invention belongs to the field of battery modules, and in particular relates to the structure of a large flexible battery module for pure electric passenger vehicles. Background technique [0002] With the development of new energy electric vehicle technology, people have higher and higher requirements for its cruising range. With the development of electric vehicle cruising range to 500km, or even 600km, the traditional vehicle chassis structure cannot meet its battery box assembly requirements. . The new-generation electric vehicle platform is more and more favored by OEMs. With the increase of battery power and the reduction of cost, the assembly process of large modules has begun to receive people's attention. At the same time, the configuration of different electric power and driving range also requires a certain degree of flexibility in the structural design of the battery module, which can realize different types of series and parallel conn...

AI Technical Summary

Problems solved by technology

Although the standard module based on the VDA size (355*155*108) can well meet the installation requirements in the traditional car battery pack, the standard module structure composed of 12 batteries connected in series and parallel cannot achieve flexibility. Cascading design requirements, and the small module structure increases the cost of components, which cannot meet the design requirements of the new generation of electric vehicle platforms

The special-shaped large module designed based on the space size of the battery box has poor versatility and cannot meet the low-cost general design requirements

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